ive had regular periods for about a year now, and my husband and i have been TTC, ive also been taking pre-natal vitamins for 2 months.I normally get my period on the 9th or 10th of every month but now im 6 days late......im feeling sick:nauseas, lower back pain, fatigue, cramping, sore breasts, but still no signs of a period...I took a First Response hpt at 4 days late but it was negative :( Tomorrow will be a week late if i dont get my period...Did i test too early?? or is the test accurate?? :( hoping to test again soon..any suggestions are of great help.. :) sprinkle me with baby dust!! :p